*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
:root{
    --img-height: 400px;
}
body{
    width: 100%;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('../images/bg.jpg');
    background-attachment: fixed;
    background-size: cover;
    height: 100vh;
}
.float{
    overflow: hidden;
}
.game{
    position: relative;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
    width: 30%;
    background: rgba(255,255,255,0.6);
    /*border: solid 4px black;*/
    padding-bottom: 40px;
    padding: 20px;
    border-radius: 15px;
}
.game-example{
    float: right;
}
.null{
    border: none!important;
}
.game-example::after{
    content: "";
    clear: both;
}
.game-example img{
    width: 200px;
    height: 130px;
    object-fit: cover;
}
#app .container{
    position: relative;
    width: 100%;
    height: var(--img-height);
    
}
.container{
    /*background: url("../images/game-bg.png") no-repeat;*/
    border: 1px solid black;
}
.container div{
    width: 33.3%;
    height: 33.3%;
    border: 1px solid;
    position: absolute;
    transition: top 0.2s ease-in-out,left 0.2s ease-in-out;
    border: none;
}

.game-el {
    background: url("../images/game-bg.jpg") no-repeat;
    background-size: 366%;
}
.btn{
    position: absolute;
    padding: 10px 20px;
    background: cornflowerblue;
    color: white;
    border: 2px solid #ccc;
    left:  -30%;
    cursor: pointer;
    user-select: none;
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
}
.btn:hover{
    background: #007bff;
}
.btn:active{    
    transform: scale(0.9);
}
.img-move {
    width: 200px;
    margin-left: 150px;
    margin-bottom: 20px;
}